EVAL-ADA4870EBZ: Evaluating the ADA4870 High Voltage, 1 A Output Drive Amplifier
User guide for the EVAL-ADA4870EBZ board, evaluating the ADA4870 high-speed, high-voltage amplifier capable of 1A output current and 2500 V/μs slew rate from a 40V supply.
Overview
The EVAL-ADA4870EBZ evaluation board provides a platform for testing the ADA4870, a unity-gain stable, high-speed current feedback amplifier. The device delivers up to 1 A of output current and features a 2500 V/μs slew rate with a maximum 40 V supply. This document details the 6-layer board construction, power supply decoupling requirements, and input/output interfacing using SMA connectors. It covers configuration for single or dual supply operation, thermal management strategies including heat sink application via an exposed copper plane, and the use of integrated features such as short-circuit protection, shutdown mode, and thermal monitoring/short-circuit flags.
Use Cases
- OLED/AMOLED panel driver
- Base transceiver station (BTS) envelope tracking
- Power field effect transistor (FET) driver
- Ultrasound
- Piezoelectric driver
- PIN diode driver
- Waveform generation
- Automatic test equipment (ATE)
Topics
Referenced Parts
AVX
5 5 C4, C5, C9, C25, C26 Capacitor, ceramic, 50 V, X7R, 0603, 10% 0.1 μF 06035C104KAT2A AVX
Analog Devices
1 1 Not applicable ADA4870 evaluation board Not applicable EVAL- | ADA4870EBZ | Analog Devices | 2 1 U1 ADA4870 Not applicable ADA4870ACPZ Analog Devices | 3 2 C1, C22 Capacitor, tantalum, 50 V, 7343-43, 10% 22 μF T491X226K050AT KEMET
Vishay
23 1 R28 Resistor, 1 W, 2512, 1% 4.99 Ω CRCW25124R99F | KEG | Vishay | 24 1 R29 Resistor, ¼ W, 1206, 5% 0 Ω CRCW12060000Z | 0EA
Analog Devices
Designator Description Value Part No. Manufacturer | 1 1 Not applicable ADA4870 evaluation board Not applicable EVAL- | ADA4870EBZ | Analog Devices | 2 1 U1 ADA4870 Not applicable ADA4870ACPZ Analog Devices
TP-108
Components Corporation
Connector, test point, surface mount
TP104-01-00
Components Corporation
Connector, test point Black
TP104-01-02
Components Corporation
Connector, test point Red
TP104-01-05
Components Corporation
Connector, test point Green
TP104-01-06
Components Corporation
Connector, test point Blue
RK73H2BTTD49R9F
KOA Speer Electronics, Inc.
Resistor, ¼ W, 1206, 1% 49.9 Ω
06035C102KAT2A
Murata
Not installed GRM1885C1H301 | JA01D | Murata | 8 1 C8 Capacitor ceramic, 50 V, X7R, 0603, 10% 1000 pF 06035C102KAT2A AVX | 9 2 CR1, CR2 Diode, Zener, SOT-23 5.6 V BZX84C5V6LT1G ON Semiconductor
H2HTTE1211
Vishay
21 1 R19 Resistor, ¼ W, 1206, 1% 300 Ω CRCW1206300RF | KEA | Vishay | 22 1 R20 Resistor, ¾ W, 2010, 1% 1.21 kΩ RK73H2HTTE1211 | F
TBH25P10R0JE
Vishay
24 1 R29 Resistor, ¼ W, 1206, 5% 0 Ω CRCW12060000Z | 0EA | Vishay | 25 1 R30 Resistor, 10 Ω, 25 W, TO-220, 5% Not installed TBH25P10R0JE Ohmite | 26 4 R4, R5, R6, R7 Resistor, 1/10 W, 0603, 1% 20 kΩ ERJ-3EKF2002V Panasonic
C71
Yageo
6 1 C7 Capacitor, ceramic, 50 V, X7R, 0805, 10% 0.1 μF CC0805KRX7R9B | B104 | YAGEO | 7 1 C71 Capacitor, ceramic, 300 pF, 50 V, COG, | 0603, 5%
JA01D
Murata
0603, 5% | Not installed GRM1885C1H301 | JA01D | Murata | 8 1 C8 Capacitor ceramic, 50 V, X7R, 0603, 10% 1000 pF 06035C102KAT2A AVX
0EA
Vishay
Vishay | 24 1 R29 Resistor, ¼ W, 1206, 5% 0 Ω CRCW12060000Z | 0EA | Vishay | 25 1 R30 Resistor, 10 Ω, 25 W, TO-220, 5% Not installed TBH25P10R0JE Ohmite
B104
Yageo
5 5 C4, C5, C9, C25, C26 Capacitor, ceramic, 50 V, X7R, 0603, 10% 0.1 μF 06035C104KAT2A AVX | 6 1 C7 Capacitor, ceramic, 50 V, X7R, 0805, 10% 0.1 μF CC0805KRX7R9B | B104 | YAGEO | 7 1 C71 Capacitor, ceramic, 300 pF, 50 V, COG,
| 06035C102KAT2A | AVX | Capacitor ceramic, 50 V, X7R, 0603, 10% 1000 pF |
| 06035C104KAT2A | AVX | Capacitor, ceramic, 50 V, X7R, 0603, 10% 0.1 μF |
| TAJD106M050RNJ | AVX | Capacitor, tantalum, 50 V, 0.8 Ω, 7343-31, 20% 10 μF |
| T491X226K050AT | Kemet | Capacitor, tantalum, 50 V, 7343-43, 10% 22 μF |
| GRM1885C1H301JA01D | Murata | Capacitor, ceramic, 300 pF, 50 V, COG, 0603, 5% |
| TBH25P10R0JE | Ohmite | Resistor, 10 Ω, 25 W, TO-220, 5% |
| ERJ-3EKF1001V | Panasonic | Resistor, 1/10 W, 0603, 1% 1 kΩ |
| ERJ-3EKF2002V | Panasonic | Resistor, 1/10 W, 0603, 1% 20 kΩ |
| ERJ-3EKF49R9V | Panasonic | Resistor, 1/10 W, 0603, 1% 49.9 Ω |
| ERJ-3GEY0R00V | Panasonic | Resistor, jumper, 1/10 W, 0603 0 Ω |
| TSW-103-08-G-S | Samtec | Connector, PCB, berg, header, straight, male, 3P |
| CRCW12060000Z0EA | Vishay | Resistor, ¼ W, 1206, 5% 0 Ω |
| CRCW1206300RFKEA | Vishay | Resistor, ¼ W, 1206, 1% 300 Ω |
| CRCW25124R99FKEG | Vishay | Resistor, 1 W, 2512, 1% 4.99 Ω |
| CC0805KRX7R9BB104 | Yageo | Capacitor, ceramic, 50 V, X7R, 0805, 10% 0.1 μF |
| 10-8109 | GC Electronics | thermal interface material (TIM), such as the GC Electronics 10-8109 |
| 06035C102KAT2A | AVX | 8 1 C8 Capacitor ceramic, 50 V, X7R, 0603, 10% 1000 pF 06035C102KAT2A AVX |
| 06035C104KAT2A | AVX | 5 5 C4, C5, C9, C25, C26 Capacitor, ceramic, 50 V, X7R, 0603, 10% 0.1 μF 06035C104KAT2A AVX |
| TAJD106M050RNJ | AVX | 10 μF TAJD106M050RNJ AVX |
| T491X226K050AT | Kemet | 3 2 C1, C22 Capacitor, tantalum, 50 V, 7343-43, 10% 22 μF T491X226K050AT KEMET |
| ERJ-3EKF1001V | Panasonic | 28 1 R89 Resistor, 1/10 W, 0603, 1% 1 kΩ ERJ-3EKF1001V Panasonic |
| ERJ-3EKF2002V | Panasonic | 26 4 R4, R5, R6, R7 Resistor, 1/10 W, 0603, 1% 20 kΩ ERJ-3EKF2002V Panasonic |
| ERJ-3EKF49R9V | Panasonic | 27 1 R8 Resistor, 1/10 W, 0603, 1% 49.9 Ω ERJ-3EKF49R9V Panasonic |
| ERJ-3GEY0R00V | Panasonic | 18 2 R1, R2 Resistor, jumper, 1/10 W, 0603 0 Ω ERJ-3GEY0R00V Panasonic |
| TSW-103-08-G-S | Samtec | Not applicable TSW-103-08-G-S Samtec |
| 65474-001LF | Amphenol FCI | Jumper socket for P2 and P3 |
| 69157-102HLF | Amphenol FCI | Connector, PCB, berg, jumper, straight, male, 2P |
| ADA4870ACPZ | Analog Devices | ADA4870, Unity-gain stable, high speed current feedback amplifier |
| 142-0701-801 | Cinch Connectivity Solutions | Connector, coax SMA end launch |
| RK73H2HTTE1211F | KOA Speer Electronics, Inc. | Resistor, ¾ W, 2010, 1% 1.21 kΩ |
| BZX84C5V6LT1G | Onsemi | Diode, Zener, SOT-23 5.6 V |
| MBRS360T3G | Onsemi | Schottky diode, power rectifier, surface-mount component (SMC) 60 V |
| ADA4870ACPZ | Analog Devices | 1 1 Not applicable ADA4870 evaluation board Not applicable EVAL- | ADA4870EBZ | Analog Devices | 2 1 U1 ADA4870 Not applicable ADA4870ACPZ Analog Devices | 3 2 C1, C22 Capacitor, tantalum, 50 V, 7343-43, 10% 22 μF T491X226K050AT KEMET |
| CRCW12060000Z | Vishay | 23 1 R28 Resistor, 1 W, 2512, 1% 4.99 Ω CRCW25124R99F | KEG | Vishay | 24 1 R29 Resistor, ¼ W, 1206, 5% 0 Ω CRCW12060000Z | 0EA |
| ADA4870EBZ | Analog Devices | Designator Description Value Part No. Manufacturer | 1 1 Not applicable ADA4870 evaluation board Not applicable EVAL- | ADA4870EBZ | Analog Devices | 2 1 U1 ADA4870 Not applicable ADA4870ACPZ Analog Devices |
| ADA4870ACPZ | Analog Devices | 2 1 U1 ADA4870 Not applicable ADA4870ACPZ Analog Devices |
| BZX84C5V6LT1G | Onsemi | 9 2 CR1, CR2 Diode, Zener, SOT-23 5.6 V BZX84C5V6LT1G ON Semiconductor |
| MBRS360T3G | Onsemi | 60 V MBRS360T3G ON Semiconductor |
| TP-108 | Components Corporation | Connector, test point, surface mount |
| TP104-01-00 | Components Corporation | Connector, test point Black |
| TP104-01-02 | Components Corporation | Connector, test point Red |
| TP104-01-05 | Components Corporation | Connector, test point Green |
| TP104-01-06 | Components Corporation | Connector, test point Blue |
| RK73H2BTTD49R9F | KOA Speer Electronics, Inc. | Resistor, ¼ W, 1206, 1% 49.9 Ω |
| 06035C102KAT2A | Murata | Not installed GRM1885C1H301 | JA01D | Murata | 8 1 C8 Capacitor ceramic, 50 V, X7R, 0603, 10% 1000 pF 06035C102KAT2A AVX | 9 2 CR1, CR2 Diode, Zener, SOT-23 5.6 V BZX84C5V6LT1G ON Semiconductor |
| H2HTTE1211 | Vishay | 21 1 R19 Resistor, ¼ W, 1206, 1% 300 Ω CRCW1206300RF | KEA | Vishay | 22 1 R20 Resistor, ¾ W, 2010, 1% 1.21 kΩ RK73H2HTTE1211 | F |
| TBH25P10R0JE | Vishay | 24 1 R29 Resistor, ¼ W, 1206, 5% 0 Ω CRCW12060000Z | 0EA | Vishay | 25 1 R30 Resistor, 10 Ω, 25 W, TO-220, 5% Not installed TBH25P10R0JE Ohmite | 26 4 R4, R5, R6, R7 Resistor, 1/10 W, 0603, 1% 20 kΩ ERJ-3EKF2002V Panasonic |
| C71 | Yageo | 6 1 C7 Capacitor, ceramic, 50 V, X7R, 0805, 10% 0.1 μF CC0805KRX7R9B | B104 | YAGEO | 7 1 C71 Capacitor, ceramic, 300 pF, 50 V, COG, | 0603, 5% |
| JA01D | Murata | 0603, 5% | Not installed GRM1885C1H301 | JA01D | Murata | 8 1 C8 Capacitor ceramic, 50 V, X7R, 0603, 10% 1000 pF 06035C102KAT2A AVX |
| 0EA | Vishay | Vishay | 24 1 R29 Resistor, ¼ W, 1206, 5% 0 Ω CRCW12060000Z | 0EA | Vishay | 25 1 R30 Resistor, 10 Ω, 25 W, TO-220, 5% Not installed TBH25P10R0JE Ohmite |
| B104 | Yageo | 5 5 C4, C5, C9, C25, C26 Capacitor, ceramic, 50 V, X7R, 0603, 10% 0.1 μF 06035C104KAT2A AVX | 6 1 C7 Capacitor, ceramic, 50 V, X7R, 0805, 10% 0.1 μF CC0805KRX7R9B | B104 | YAGEO | 7 1 C71 Capacitor, ceramic, 300 pF, 50 V, COG, |